In a YouTube video sponsored by the Sierra Club in time for Valentine's Day, actresses of note say they are breaking off their relationship with fossil fuels.

The lead-in for the 43-second spot goes like this: “I just don’t think it’s working out any more - our relationship is toxic. I need something I can commit to for the long term: clean energy.”

The video was posted on YouTube earlier this month in anticipation of a critical decision by state regulators on how to replace energy once produced at the recently retired San Onofre Nuclear Generating Station.

Actresses Amy Smart, Eva Amurri, Dawn Olivieri, and Emmanuelle Chriqui ask Gov. Jerry Brown to make a "clean break" with fossil fuels. The actresses donated their time, a Sierra Club spokesman said.

The California Public Utilities Commission is weighing how much new energy should come from natural gas plants versus cleaner, renewable technologies. Utilities including San Diego Gas & Electric are juggling concerns about reliability with efforts to meet the state's aggressive goals for reducing heat-trapping greenhouse gasses linked to climate change.